The US military said the blockade would begin at 2pm GMT (10pm, Singapore time), and apply to all ships leaving or seeking to dock at Iranian ports on either side of the key waterway.
Netanyahu said Tehran had violated the terms of the talks to begin with, saying Vance had briefed him after the negotiations ended in Islamabad.
“The breakdown came from the American side, which could not tolerate Iran’s blatant violation of the terms for entering negotiations,” Netanyahu told the Cabinet.
“The agreement was that there would be a ceasefire, and that the Iranians would immediately open the strait. They did not do so. The Americans could not accept this.”
Netanyahu also said Vance had told him the “central issue” for Trump was the removal of all enriched uranium from Iran and “ensuring that there is no further enrichment in the years ahead – even decades ahead – no enrichment within Iran”.
“That is their focus, and of course it is important to us as well,” Netanyahu added.